An engineering firm is interested in investigating whether the variability in the cost of small projects (defined
Question:
a. Develop a simple linear regression model to explain the variation in total project cost based on the number of billed consulting hours.
b. Construct and interpret a 95% confidence interval estimate for the regression slope coefficient.
c. Provide a 95% confidence interval for the average value of y when xp = 3,500.
d. Provide a 95% prediction interval for total project cost for a particular project with 3,500 billed consulting hours.
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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